050
FNCA52 TJSJ 160844
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
444 AM AST FRI JAN 16 2026
DISCUSSION
ONCE AGAIN, DAYTIME RH VALUES ARE EXPECTED TO REMAIN ABOVE
THRESHOLDS CRITERIA. WINDS WILL REMAIN FROM THE SOUTHEAST TODAY AND
RANGE BETWEEN 10 AND 18 MPH WITH HIGHER GUSTS AROUND 25 MPH AND
SEA BREEZE VARIATIONS. THE RISK IS LOW TODAY, BUT WE ENCOURAGE
PEOPLE TO STAY INFORMED.
PRZ014-170845-
SOUTHEAST COASTAL PLAINS-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 10 0 50
TEMP (24H TREND) 88 (+3) 69 (-3) 88
RH % (24H TREND) 53 (-9) 90 (-2) 43
WIND 20FT/EARLY(MPH) E 16 G21 NE 12 E 21 G28
WIND 20FT/LATE(MPH) E 16 G21 NE 12 E 21 G28
MIXING HGT(FT-AGL/MSL)4340 5270
TRANSPORT WND (MPH) E 15 E 22
VENT RATE (KT-FT) 56420 100130
DISPERSION 5 5
DSI 5 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-170845-
SOUTHERN HILLS-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 40
TEMP (24H TREND) 84 (+4) 66 (-4) 84
RH % (24H TREND) 64 (-11) 93 (-1) 61
WIND 20FT/EARLY(MPH) E 12 NE 12 E 17
WIND 20FT/LATE(MPH) E 12 NE 12 E 17
MIXING HGT(FT-AGL/MSL)4590 5430
TRANSPORT WND (MPH) E 12 E 22
VENT RATE (KT-FT) 45900 103170
DISPERSION 5 5
DSI 5 3 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-170845-
NORTH COASTAL PLAINS-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 60
TEMP (24H TREND) 87 (+1) 69 (-1) 87
RH % (24H TREND) 62 (-5) 97 (-1) 63
WIND 20FT/EARLY(MPH) E 17 G19 E 14 E 21 G23
WIND 20FT/LATE(MPH) E 17 G19 E 14 E 21 G23
MIXING HGT(FT-AGL/MSL)4250 4910
TRANSPORT WND (MPH) E 13 E 23
VENT RATE (KT-FT) 46750 98200
DISPERSION 5 5
DSI 5 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-170845-
NORTHERN HILLS-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 0 40
TEMP (24H TREND) 85 (+1) 67 (-1) 85
RH % (24H TREND) 63 (-2) 98 (+1) 62
WIND 20FT/EARLY(MPH) E 13 E 12 E 18
WIND 20FT/LATE(MPH) E 13 E 12 E 18
MIXING HGT(FT-AGL/MSL)4470 5220
TRANSPORT WND (MPH) E 9 E 21
VENT RATE (KT-FT) 35760 93960
DISPERSION 5 5
DSI 5 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-170845-
WEST COAST-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 40 50
TEMP (24H TREND) 87 (+1) 67 (-4) 88
RH % (24H TREND) 63 (-6) 98 (+3) 59
WIND 20FT/EARLY(MPH) E 12 E 13 E 16 G18
WIND 20FT/LATE(MPH) E 12 E 13 E 16 G18
MIXING HGT(FT-AGL/MSL)4070 4750
TRANSPORT WND (MPH) E 9 E 16
VENT RATE (KT-FT) 32560 66500
DISPERSION 5 5
DSI 5 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-170845-
EASTERN INTERIOR-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 70
TEMP (24H TREND) 85 (+3) 67 (-3) 84
RH % (24H TREND) 65 (-9) 95 (-3) 65
WIND 20FT/EARLY(MPH) E 13 E 12 E 18
WIND 20FT/LATE(MPH) E 13 E 12 E 18
MIXING HGT(FT-AGL/MSL)4730 5100
TRANSPORT WND (MPH) E 14 E 22
VENT RATE (KT-FT) 56760 96900
DISPERSION 5 5
DSI 5 3 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-170845-
LUQUILLO MOUNTAIN RANGE-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 70
TEMP (24H TREND) 80 (+3) 66 (-3) 80
RH % (24H TREND) 73 (-8) 98 (-2) 70
WIND 20FT/EARLY(MPH) E 12 E 10 E 16 G18
WIND 20FT/LATE(MPH) E 12 E 10 E 16 G18
MIXING HGT(FT-AGL/MSL)3680 4230
TRANSPORT WND (MPH) E 16 E 23
VENT RATE (KT-FT) 51520 84600
DISPERSION 5 5
DSI 5 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-170845-
CENTRAL MOUNTAIN RANGE-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 40
TEMP (24H TREND) 84 (+5) 64 (-3) 84
RH % (24H TREND) 64 (-8) 97 (0) 63
WIND 20FT/EARLY(MPH) E 8 E 10 E 12
WIND 20FT/LATE(MPH) E 8 E 10 E 12
MIXING HGT(FT-AGL/MSL)5070 5420
TRANSPORT WND (MPH) E 7 E 20
VENT RATE (KT-FT) 30420 92140
DISPERSION 5 5
DSI 5 2 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-170845-
CAYEY MOUNTAIN RANGE-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 60
TEMP (24H TREND) 80 (+3) 66 (-3) 80
RH % (24H TREND) 73 (-9) 96 (-3) 72
WIND 20FT/EARLY(MPH) E 11 NE 10 E 16
WIND 20FT/LATE(MPH) E 11 NE 10 E 16
MIXING HGT(FT-AGL/MSL)4340 4770
TRANSPORT WND (MPH) E 14 E 23
VENT RATE (KT-FT) 52080 95400
DISPERSION 5 5
DSI 5 3 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-170845-
VIEQUES-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 60
TEMP (24H TREND) 85 (0) 71 (-2) 85
RH % (24H TREND) 61 (-5) 95 (-2) 60
WIND 20FT/EARLY(MPH) E 14 G18 E 16 G20 E 20 G24
WIND 20FT/LATE(MPH) E 14 G18 E 16 G20 E 20 G24
MIXING HGT(FT-AGL/MSL)3140 3720
TRANSPORT WND (MPH) E 17 E 24
VENT RATE (KT-FT) 47100 78120
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-170845-
CULEBRA-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 50
TEMP (24H TREND) 86 (+1) 73 (-2) 85
RH % (24H TREND) 62 (-7) 93 (-1) 62
WIND 20FT/EARLY(MPH) E 14 G18 E 14 G19 E 19 G24
WIND 20FT/LATE(MPH) E 14 G18 E 14 G19 E 19 G24
MIXING HGT(FT-AGL/MSL)3220 3540
TRANSPORT WND (MPH) E 17 E 26
VENT RATE (KT-FT) 48300 81420
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-170845-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 30
TEMP (24H TREND) 89 (+3) 68 (-4) 89
RH % (24H TREND) 53 (-7) 93 (0) 48
WIND 20FT/EARLY(MPH) E 18 G23 E 11 E 23 G29
WIND 20FT/LATE(MPH) E 18 G23 E 11 E 23 G29
MIXING HGT(FT-AGL/MSL)4210 5580
TRANSPORT WND (MPH) E 16 E 21
VENT RATE (KT-FT) 58940 100440
DISPERSION 5 5
DSI 5 4 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-170845-
SAINT THOMAS AND SAINT JOHN-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 60
TEMP (24H TREND) 85 (+1) 72 (-3) 86
RH % (24H TREND) 62 (-8) 97 (+4) 62
WIND 20FT/EARLY(MPH) E 16 G20 E 17 G21 E 20 G25
WIND 20FT/LATE(MPH) E 16 G20 E 17 G21 E 20 G25
MIXING HGT(FT-AGL/MSL)3330 3510
TRANSPORT WND (MPH) E 15 E 28
VENT RATE (KT-FT) 43290 84240
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-170845-
ST CROIX-
444 AM AST FRI JAN 16 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 60
TEMP (24H TREND) 86 (+1) 71 (-4) 86
RH % (24H TREND) 63 (-6) 95 (+4) 62
WIND 20FT/EARLY(MPH) E 16 G20 E 17 G21 E 20 G25
WIND 20FT/LATE(MPH) E 16 G20 E 17 G21 E 20 G25
MIXING HGT(FT-AGL/MSL)3980 4230
TRANSPORT WND (MPH) E 22 E 30
VENT RATE (KT-FT) 75620 109980
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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